Dielectric Properties of 3D Printed Polylactic Acid

Figure 3

Dielectric constant (a) and dielectric loss (b) of PLA in the as-printed condition; measurements are shown as functions of frequency for temperatures ranging from 340 K to 410 K. Lines are fits according to Havriliak-Negami (HN) model. The inset shows the relaxations times according to the peak maxima of the dielectric loss in an Arrhenius representation fitted with a VFT function (dashed line). The glass transition temperature is indicated at τ (100 s).